The metal work consists of/includes an iron nail and a gold knife

[abo.omar]

1. We have excavated four archaeological features, a pit, a house, a well and a road. The features consists of/include a pit, a house, a well and a road.
2. The tomb was buried with only an iron nail and a gold knife.The metal work consists of/includes an iron nail and a gold knife.
1- includes
2-includes
What do you think?

 

[Tarheel]

1. We have excavated four archaeological features: a pit, a house, a well and a road. They consist of a pit, a house, a well and a road.
2. The tomb was buried with only an iron nail and a gold knife.The metalwork consists of an iron nail and a gold knife.
1- includes
2-includes
What do you think?

In both cases the second sentence largely repeats what is said in the first sentence. (I think you need a different word than metalwork.)